CN203644909U - Whole-cavity-type quadriplexer - Google Patents
Whole-cavity-type quadriplexer Download PDFInfo
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- CN203644909U CN203644909U CN201320838032.XU CN201320838032U CN203644909U CN 203644909 U CN203644909 U CN 203644909U CN 201320838032 U CN201320838032 U CN 201320838032U CN 203644909 U CN203644909 U CN 203644909U
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- 238000005859 coupling reaction Methods 0.000 claims abstract description 21
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- 238000002955 isolation Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 230000010287 polarization Effects 0.000 description 5
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Abstract
The utility model provides a whole-cavity-type quadriplexer. The quadriplexer comprises a cover plate, a main cavity and a first base plate and a second base plate. The cover plate is equipped with a common transmission channel and one side of the tail end of the common transmission channel is equipped with a first waveguide group. The main cavity is equipped with a first signal transmission channel and a second signal transmission channel and a second signal coupling port is arranged in the second signal transmission channel. The first base plate and the second base plate are equipped with dual mode resonant cavities. The cover plate, the main cavity, and the first base plate and second base plate are subjected to butt joint respectively and the whole-cavity-type quadriplexer is formed. The whole-cavity-type quadriplexer has characteristics of simplified structure and compact size, and the reliability of the production is raised greatly. The duplex resonant cavity group formed through connection of the first base plate and the second base plate with the main cavity respectively achieves excellent filter performances without commissioning.
Description
[technical field]
The utility model relates to a kind of passive multiplexer assembly, relates in particular to a kind of full cavity type four multiplexer assemblies.
[background technology]
Microwave communication is current one of conventional wireless communication means in the world, is widely used in the fields such as transfer of data, radio and television transmission, satellite communication, mobile communication.Along with the growth of microwave communication demand, the communication network of the point-to-point or point-to-multipoint being made up of microwave antenna is more and more intensive, produces the potential risk interfering with each other increasing between microwave system.Therefore, communication network wish used number of devices will be as much as possible less, function is abundant as much as possible, outdoor overall volume is as much as possible little simultaneously, namely wish to make an outdoor transceiver can use more channel and frequency spectrum resource as far as possible simultaneously, meanwhile, also wish that outdoor transceiver can miniaturization.
Outdoor transceiver for a new generation requires to have dual polarization, twin-channel function simultaneously, namely requires to have orthogonal polarization for the receiving and transmitting front end of system radio frequency and separates and the receipts/function of sending out duplexing, and such front end assemblies is passive four multiplexers.
Four traditional multiplexers are generally formed by simple stack combinations of module such as polarization switch, orthomode transducer, filters, its maximum advantage is to propose specific requirement to a certain module separately, but that what represent is shortcoming and defect is more, for example overall volume is large, be unfavorable for the development trend of integral device integrating and miniaturization, and each component combination together after, overall performance worsens serious, between translation interface, influence each other, particularly transmitting terminal standing wave worsens the insertion loss of more greatly, simultaneously having introduced translation interface, is not easy to high-power use.
In addition, traditional duplexer, because relative bandwidth is narrower, generally all need to be debugged by tuning screw, and thus, the reliability of duplexer can be affected, and has increased the cost of manual debugging simultaneously.
[utility model content]
The purpose of this utility model is to provide a kind of full cavity type four multiplexers, and it is multi-functional integrated that it adopts overall cavity to realize, and version is simply compact, is easy to entirety processing, less demanding to structure precision; This four multiplexer can be realized filtering characteristic without manual tuning.
For realizing this object, the utility model adopts following technical scheme:
A kind of full cavity type four multiplexers, comprising: have the first end face of facing one another and the second end face cover plate, be arranged at the main cavity of cover plate the second end face below and be connected with described main cavity respectively and be arranged at the first base plate and the second base plate below described main cavity; Described cover plate is also provided with the common transmission passage through another end face from one of them end face, described cover plate is also provided with the common transmission passage through another end face from one of them end face, and the public port of this common transmission passage is located on described the first end face, described cover plate also comprise be opened on the second end face and with the first wave guide group of described common transmission passage conducting; Described main cavity is provided with first signal transmission channel and secondary signal transmission channel, and described secondary signal transmission channel both sides are respectively equipped with the second waveguide group and the 3rd waveguide group, in described the 3rd waveguide group, be provided with secondary signal coupling port, described first signal transmission channel and the second waveguide group corresponding described first wave guide group and common transmission passage of being connected respectively; Described the first base plate and the second base plate are respectively equipped with the first duplexing filtering cavity and the second duplexing filtering cavity, and described the first duplexing filtering cavity is connected with described first signal transmission channel and described secondary signal coupling window respectively with the second duplexing filtering cavity.
Described first wave guide group, the second waveguide group and the 3rd waveguide group are the step waveguide group with at least one-level step waveguide.
Described public port be shaped as circle, square, rectangle or other regular polygons with fillet.
Described common transmission passage, first signal transmission channel, secondary signal coupling port three are non co axial setting.
Described first signal transmission channel and secondary signal coupling port is orthogonal thereto arranges.
Described the first duplexing filtering cavity and the second duplexing filtering cavity are bimodulus resonance chamber.
Compared with prior art, the utility model possesses following advantage:
1, full cavity type four multiplexers of the present utility model, all parts is cavity design, adopts entirety to be processed to form.Main cavity docks the functions such as the receipts of the signal of realizing orthogonal polarization/send out high isolation transmission, duplex, filtering with cover plate, the base plate with cavity, whole modular construction is simplified, and volume compact, has improved product reliability energy greatly.
2,, in full cavity type four multiplexers of the present utility model, described the first base plate and the second base plate are realized good filtering performance with the duplexing resonant cavity group that described main cavity is connected to form respectively under the prerequisite of exempting from debugging.
[accompanying drawing explanation]
Fig. 1 is the structural representation of full cavity type four multiplexers of the utility model;
Fig. 2 is the exploded view of full cavity type four multiplexers shown in Fig. 1;
Fig. 3 is the stereogram that the cover plate of full cavity type four multiplexers of the utility model is observed from bottom;
Fig. 4 is the vertical view of the main cavity of full cavity type four multiplexers of the utility model;
Fig. 5 is full cavity type four multiplexers of the utility model isolation performance curves between output port in 12-14GHz frequency range.
[embodiment]
Below in conjunction with accompanying drawing and exemplary embodiment, the utility model is further described, wherein in accompanying drawing, identical label all refers to identical parts.In addition, if the detailed description of known technology is for illustrating that feature of the present utility model is unnecessary, by its omission.
Consult Fig. 1, full cavity type four multiplexers of the present utility model, comprise cover plate 1, are arranged at the main cavity 2 of cover plate 1 below and are arranged at respectively the first base plate 3 and second base plate 4 of main cavity 2 bottoms.
Consult Fig. 2, Fig. 3, described cover plate 1 has the first end face 101 and the second end face 102 that face one another.In addition, described cover plate 1 also has the common transmission passage 11 through another end face (such as the second end face 102) from one of them end face (such as the first end face 101).Described common transmission passage 11 has the public port 110 being opened on described the first end face 101.In addition, described cover plate 1 further comprise be opened in such as on the second end face 102 and with the first step waveguide group 12 of described common transmission passage 11 conductings.Preferably, described first step waveguide group 12 has at least for example two stage steps waveguide of one-level.
Due to because transmission equivalent is with the needs of orthogonally polarized signal frequently, described public port 110 be shaped as circle, square, rectangle or other regular polygons with fillet.
Consult Fig. 2, Fig. 4, described main cavity 2 is provided with first signal transmission channel 21 and secondary signal transmission channel 22.The both sides of described secondary signal transmission channel 22 are respectively equipped with second step waveguide group 23 and the 3rd step waveguide group 24, and are provided with secondary signal coupling window 25 in described the 3rd step waveguide group 24.Described first signal transmission channel 21 and second step waveguide group 23 are connected respectively first step waveguide group 12 and common transmission passage 11.In full cavity type four multiplexers of the present utility model, described second step waveguide group and the 3rd step waveguide group are the step waveguide group with at least one-level step waveguide.
In addition,, in order to guarantee that this four multiplexer has good coupling laser propagation effect and makes simplifying the structure of this four multiplexer, described common transmission passage 11, first signal transmission channel 21, secondary signal coupling port 25 threes are non co axial and arrange.
In theory, in order to guarantee the isolation characteristic of first signal transmission channel 21 and secondary signal coupling port 25, first signal transmission channel 21 is arranged with secondary signal coupling port 25 is orthogonal thereto, i.e. the axis perpendicular quadrature of first signal transmission channel 21 and secondary signal coupling port 25.But, in the actual course of processing, often cannot accomplish the strict perpendicular quadrature of axis of first signal transmission channel 21 and secondary signal coupling port 25, therefore, in practical implementation, certain error range also allows.
Please refer to Fig. 2, on described the first base plate 3 and the second base plate 4, be respectively equipped with the first duplexing filtering cavity 31 and the second duplexing filtering cavity 41, and described the first duplexing filtering cavity 31 and the second duplexing filtering cavity 41 are connected respectively first signal transmission channel 21 and the secondary signal coupling port 25 of main cavity 2.
Described the first duplexing filtering cavity 31 and the second duplexing filtering cavity 41 are all set to bimodulus resonant cavity.Described bimodulus resonant cavity shapes respectively on the first base plate 3 and the second base plate 4, and it is accurately designed by full-wave simulation software (as Ansoft HFSS, CST MW Studio etc.) at a certain angle by cylindrical cavity, elliptic cavity, rectangular cavity.By the zero point outside full-wave simulation software adjustment band, carry out the amount of suppression on optimized transmission passband both sides, then guarantee by suitable processing technology, thereby realize the object of exempting from debugging.
Above-mentioned common transmission passage, first step waveguide group 12, first signal transmission channel 21, first duplexing filtering cavity 31 common formation the first tributary circuits; Described common transmission passage 11, second step waveguide group 23, the 3rd step waveguide group 24, secondary signal coupled end 25 and second duplexing filtering cavity 41 common formation the second tributary circuits.
The process that the first orthogonal polarized signal and the second polarized signal are transferred to two base plates from common transmission passage 11 transmission of cover plate 1 through the respective transmissions passage coupling of main cavity 2 is as follows: first step waveguide group 12, first signal transmit port 21 that the first polarized signal is gone through cover plate 1 bottom are transferred to the signal of this polarization components the first duplexing filtering cavity 31, meanwhile, this first polarized signal is cut off transmission at secondary signal coupling port 25 places; The second polarized signal is gone through common transmission port, second step waveguide group 23, secondary signal coupling port 25 and is transferred in the second duplexing filtering cavity 41 of the second base plate 4, simultaneously, this second polarized signal is cut off transmission at first step waveguide group 12 ends, thereby realizes the high isolation transmission of two-way polarized signal in described main cavity 2.
Two-way polarized signal separated transmission Yu He road is reciprocity process.Similarly, enter the 3rd polarized signal and the 4th polarized signal of main cavity 2 from the first base plate 3 and the second base plate 4 transmission respectively, successively by the 3rd polarized signal of first signal transmit port 21, first step waveguide group 12, and close road to public port 11 by the 4th polarized signal of secondary signal coupling port 22, second step waveguide group 23 successively.
The utility model is produced formal product in 11-40GHz frequency range, and performance test is good, meets market demands.Between output port, isolation performance curve is as shown in Figure 5 in 12-14GHz frequency range for full cavity type four multiplexer products of the present utility model, wherein, solid line is the isolation curve between two output ports of co polar signal, and dotted line is the isolation curve being respectively between the same frequency range of different polarized signals and two output ports of alien frequencies section.
Although shown exemplary embodiments more of the present utility model above, but it should be appreciated by those skilled in the art that, in the situation that not departing from principle of the present utility model or spirit, can make a change these exemplary embodiments, scope of the present utility model is limited by claim and equivalent thereof.
Claims (6)
1. full cavity type four multiplexers, is characterized in that comprising: have the first end face of facing one another and the second end face cover plate, be arranged at the main cavity of cover plate the second end face below and be connected with described main cavity respectively and be arranged at the first base plate and the second base plate below described main cavity; Described cover plate is also provided with the common transmission passage through another end face from one of them end face, and the public port of this common transmission passage is located on described the first end face, described cover plate also comprise be opened on the second end face and with the first wave guide group of described common transmission passage conducting; Described main cavity is provided with first signal transmission channel and secondary signal transmission channel, and described secondary signal transmission channel both sides are respectively equipped with the second waveguide group and the 3rd waveguide group, in described the 3rd waveguide group, be provided with secondary signal coupling port, described first signal transmission channel and the second waveguide group corresponding described first wave guide group and common transmission passage of being connected respectively; Described the first base plate and the second base plate are respectively equipped with the first duplexing filtering cavity and the second duplexing filtering cavity, and described the first duplexing filtering cavity is connected with described first signal transmission channel and described secondary signal coupling window respectively with the second duplexing filtering cavity.
2. full cavity type four multiplexers according to claim 1, is characterized in that, described first wave guide group, the second waveguide group and the 3rd waveguide group are the step waveguide group with at least one-level step waveguide.
3. full cavity type four multiplexers according to claim 1, is characterized in that, described public port be shaped as circle, square, rectangle or other regular polygons with fillet.
4. full cavity type four multiplexers according to claim 1, is characterized in that, described common transmission passage, first signal transmission channel, secondary signal coupling port three are non co axial setting.
5. full cavity type four multiplexers according to claim 1, is characterized in that, described first signal transmission channel and secondary signal coupling port is orthogonal thereto arranges.
6. full cavity type four multiplexers according to claim 1, is characterized in that, described the first duplexing filtering cavity and the second duplexing filtering cavity are bimodulus resonance chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320838032.XU CN203644909U (en) | 2013-12-18 | 2013-12-18 | Whole-cavity-type quadriplexer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320838032.XU CN203644909U (en) | 2013-12-18 | 2013-12-18 | Whole-cavity-type quadriplexer |
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| CN203644909U true CN203644909U (en) | 2014-06-11 |
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| CN201320838032.XU Expired - Lifetime CN203644909U (en) | 2013-12-18 | 2013-12-18 | Whole-cavity-type quadriplexer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505564A (en) * | 2014-12-17 | 2015-04-08 | 科大智能（合肥）科技有限公司 | Dual polarization filter for microwave communication system ODU (Outdoor Unit) |
-
2013
- 2013-12-18 CN CN201320838032.XU patent/CN203644909U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505564A (en) * | 2014-12-17 | 2015-04-08 | 科大智能（合肥）科技有限公司 | Dual polarization filter for microwave communication system ODU (Outdoor Unit) |
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| C14 | Grant of patent or utility model | ||
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Effective date of registration: 20200116 Address after: 510730 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Patentee after: COMBA TELECOM SYSTEMS (GUANGZHOU) Ltd. Address before: 510663 Guangzhou Science City, Guangdong Shenzhou Road, No. 10 Patentee before: COMBA TELECOM SYSTEMS (CHINA) Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |